Concept:Electronic components made from semiconductors include diodes, LEDs, and transistors; capacitors are not semiconductor devices.Explanation:A diode is a semiconductor device that allows current to flow in one direction.An LED is a light-emitting diode made from semiconductor material.A transistor is a semiconductor device used for switching and amplification.A capacitor stores electrical charge using two conductors separated by an insulator, so it is not made of a semiconductor.Answer:A. Capacitor